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@ARTICLE{Sanow:1050629,
author = {Sanow, S. and Mantz, M. and Wissel, H. and Bhatnagar, A.
and Sturm, E. and Kelm, J. M. and Walker, R. and Lücke, A.
and Schaaf, G. and Huesgen, P. and Roessner, U. and Watt, M.
and Arsova, B.},
title = {{S}ystems-level {P}lant {R}esponses {R}eveal {P}seudomonas
-{M}ediated {G}rowth {P}romotion in {B}rachypodium {U}nder
{N}itrogen {L}imitation},
reportid = {FZJ-2026-00381},
year = {2025},
abstract = {Plant molecular adaptation to plant growth promoting
bacteria (PGPB) under nutrient stress remains unclear, yet
is essential for advancing PGPB use in agriculture. The
model grass Brachypodium dystachion was studied together
with Pseudomonas koreeensis (Pk) at two nitrogen (N)
conditions. Non-invasive shoot phenotyping showed an
immediate response to low-N, while beneficial effects of Pk
became quantifiable after day 19. Increased N content in
inoculated plants, along with Pk’s ability to grow on
N-free media, suggests bacterial N contribution at deficient
N. In low-N conditions, Pk-inoculated plants showed $33.2\%$
more N than uninoculated controls and biomass comparable to
high-N plants. Pk had no effect under sufficient N.
Proteomics and lipidomics revealed that lipid profiles were
primarily shaped by N availability, while protein abundance
responded to both Pk and N status. Inoculated low-N plants
displayed protein profiles resembling those of high-N
controls, with some distinct exceptions. The plant-microbe
interaction is dynamic and developed over 3 weeks, leading
to increased biomass and N content. Root proteins strongly
induced by Pk under low-N included lipid degradation
enzymes, N transporters, and regulatory proteins, suggesting
a coordinated remodelling of energy metabolism supporting
whole-plant biomass and increased abundance of N uptake
proteins.},
cin = {IBG-2 / IBG-3},
cid = {I:(DE-Juel1)IBG-2-20101118 / I:(DE-Juel1)IBG-3-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)25},
doi = {10.1101/2025.11.03.686263},
url = {https://juser.fz-juelich.de/record/1050629},
}